Toro TM5490, Operator'S Manual

Page: 47 / 94

1.47 1.47
Cutterhead Position Controls
Check hydraulic system: Check and note any
hydraulic leaks, keeping well clear of the rotating
cutting cylinders. Disengage the P.T.O. and stop
the tractor engine before attempting to tighten
loose hydraulic unions.
Operate the cutterhead lift/lower controls:
Note that there is one short “Override” and three
long “Independent” control levers.
Operate all the control levers into the ‘Down/Cut’
position.
Operate the outer long control levers in turn to lift
the 2 wing cutterheads (No’s 1 and 5) or (No’s 1
and 7). Carry out this exercise with care and ob-
serve the movement of the cutterheads to ensure
that they are not impeded by poor routing of the
hydraulic hoses. It is quite normal to experience
some delay in the response of the controls for
the first time as air is purged from the hydraulic
system. Lower the cutterheads to the ground.
Operate the middle long control lever to raise the
5 central cutterheads ( No’s 2, 3, 4, 5 & 6), fol-
lowing the same procedure outlined above.
WARNING: PREVENT ACCIDENTS - The
cutting cylinders of heads 1, 2, 3, 4, 5, 6 & 7
should stop rotating when the outer part of the
cutterhead reaches a height of 300 - 400 mm
above the ground. Cutterhead 4 will run until
reaching its transport height. If the cutting
cylinders continue to rotate above this height
limit, it is essential to adjust the position of
each diverter valve to achieve this requirement.
Check and note any hydraulic leaks.
WARNING: PREVENT ACCIDENTS - Lower
all cutterheads to the ground, disengage the
P.T.O. drive, stop the tractor engine, apply the
tractor parking brake and remove the ignition
key before making any adjustments.
For identification of controls please refer to
page 1.14.
OPERATING THE MOWER